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ifnames2.13(1) [debian man page]

IFNAMES(1)						      General Commands Manual							IFNAMES(1)

NAME
ifnames2.13 - print identifiers that a package uses in C preprocessor conditionals SYNOPSIS
ifnames2.13 [ --help | -h ] [ --macrodir=dir | -m dir ] [ --version ] DESCRIPTION
ifnames2.13 can help when writing a configure.in for a software package. It prints the identifiers that the package already uses in C pre- processor conditionals. If a package has already been set up to have some portability, this program can help you figure out what its con- figure needs to check for. It may help fill in some gaps in a configure.in generated by autoscan2.13 (see autoscan2.13(1)). ifnames2.13 scans all of the C source files named on the command line (or the standard input, if none are given) and writes to the standard output a sorted list of all the identifiers that appear in those files in #if, #elif, #ifdef, or #ifndef directives. It prints each iden- tifier on a line, followed by a space-separated list of the files in which that identifier occurs. ifnames2.13 accepts the following options: --help -h Print a summary of the command line options and exit. --macrodir=DIR -m DIR Look for the installed macro files in directory DIR. You can also set the AC_MACRODIR environment variable to a directory; this option overrides the environment variable. --version Print the version number of Autoconf and exit. SEE ALSO
autoconf2.13(1), autoheader2.13(1), autoreconf2.13(1), autoscan2.13(1), autoupdate2.13(1) AUTHORS
David MacKenzie, with help from Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, Roland McGrath, Noah Friedman, David D. Zuhn, and many others. This manpage written by Ben Pfaff <pfaffben@debian.org> for the Debian GNU/Linux autoconf2.13 package. Autoconf IFNAMES(1)

Check Out this Related Man Page

AUTOCONF(1)						      General Commands Manual						       AUTOCONF(1)

NAME
wrapper - Wrapper for distinguishing Autoconf 2.13 and 2.50 SYNOPSIS
autoconf [ options ] autoheader [ options ] autoreconf [ options ] DESCRIPTION
Autoconf is an automatic configure script builder with two major version series: 2.13 and earlier, 2.50 and later. Versions within either series are largely compatible, but the two series are largely incompatible. When both versions are installed, as they are on your system (given that you're reading this manpage), Debian selects between the two versions simultaneously. This manpage documents how the automatic selection works. If you are actually looking for the documentation for either version of Autoconf, then refer to the SEE ALSO section below. Automatic version selection works via a wrapper script installed under the names autoconf, autoheader, and autoreconf. Each of these attempts to detect which Autoconf is needed and run the correct version of the tool. There are no wrappers for autoupdate, autoscan, or ifnames. These are not used during a package build. Choose the proper version by hand. The following heuristics are used to choose an Autoconf version: * If file configure.ac exists, Autoconf 2.50 is used. Autoconf 2.13 used the name configure.in instead, but version 2.50 supports both. (Usually autoconf is run without nonoption arguments. If a filename is supplied on the command line, then version 2.50 is used if the filename ends in .ac.) * Otherwise, configure.in (or the file specified on the command line, if any) is read. It is checked for the presence of an AC_PREREQ directive. If it specifies a minimum version higher than 2.13, Autoconf 2.50 is used. aclocal.m4, if present, is also scanned. * Otherwise, Autoconf 2.13 is used. To force Autoconf 2.13 to be used, name the Autoconf input file configure.in and omit the use of AC_PREREQ() or specify a minimum version of 2.13 or earlier. To force Autoconf 2.50 to be used, name the input file configure.ac or use AC_PREREQ(2.50). I recommend not calling the programs autoconf2.13 or autoconf2.50, etc., directly, instead of through the wrappers. When used with pro- grams like Automake, these direct calls won't propagate through into the Makefile, so later re-autoconf'ings won't use the correct version. It's better to use one of the methods explained above to force a particular version. SEE ALSO
autoconf2.13(1), autoheader2.13(1), autoreconf2.13(1), autoconf2.50(1), autoheader2.50(1), autoreconf2.50(1), and the Autoconf manuals autoconf and autoconf2.13. AUTHORS
David MacKenzie, with help from Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, Roland McGrath, Noah Friedman, David D. Zuhn, and many others. This manpage written by Ben Pfaff <pfaffben@debian.org> for the Debian GNU/Linux autoconf2.13 package. Autoconf Wrapper AUTOCONF(1)

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